看门狗单片机在汽车安防电子控制单元中的作用

The Role of the Watchdog Microcontroller in Automotive Safety-Critical Electronic Control Units

随着引擎管理、传动、动力转向等功能以及其他一些辅助安全和驾驶的汽车子系统交由ECU实现,看门狗MCU的作用也日渐突显。本文描述看门狗MCU的理想特性及其对ECU性能的影响,涉及的ECU功能包括引擎管理、传动控制和其他至关重要的模块。

With ECUs implementing functions that enable engine management, transmission,power steering,airbags, side object detection,lane departure detection and other safety and driver assistance subsystems,the role of the watchdog MCU is critical,since it directly impacts overall system integrity and the driver's experience with the vehicle.This article illustrates the ideal characteristics of watchdog MCUs in their critical role of performance in ECUs,such as engine management,transmission control and other modules that are mission critical.